CN208203767U - A kind of knurling roler bolt-type anti-disassembling anti-theft bolt - Google Patents
A kind of knurling roler bolt-type anti-disassembling anti-theft bolt Download PDFInfo
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- CN208203767U CN208203767U CN201820787999.2U CN201820787999U CN208203767U CN 208203767 U CN208203767 U CN 208203767U CN 201820787999 U CN201820787999 U CN 201820787999U CN 208203767 U CN208203767 U CN 208203767U
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- disassembling
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Abstract
The utility model relates to a kind of knurling roler bolt-type anti-disassembling anti-theft bolts, it is characterized by comprising bolt bodies and roller, the bolt body includes sequentially connected bolt head, first shank of bolt and surface are provided with the second shank of bolt of threaded portion, the threaded portion of second shank of bolt is milled with the open slot that a cross section for roller insertion is in V-shape along central axes, the insertion hole that cross section is square is provided on the bolt head, the insertion hole vertically sequentially passes through bolt head and the first shank of bolt and connect with open slot, it is provided on the wall that inserts in the hole along central axes direction several equally spaced from each other from spaced hemispherical protuberances, the equally distributed annular knurl line trace to assume diamond in shape is provided on the roller side wall, roller one end insertion, which is set to, to be inserted in the hole and extends in open slot, the utility model provides one Kind is easy for installation, anti-theft function is highly reliable and installs the high knurling roler bolt-type anti-disassembling anti-theft bolt of bonding strength.
Description
Technical field
The utility model relates to a kind of knurling roler bolt-type anti-disassembling anti-theft bolts.
Background technique
To prevent trespassory taking, the field facilities such as power circuit, bridge, railway mostly use greatly the anti-anti-theft bolt that unloads to carry out tightly
It being solidly connected, existing a variety of axial lockings are anti-to unload anti-theft bolt, because of the smooth bolt that it is selected smooth roller and is used cooperatively,
In actual use, smooth roller often has skidded or slides, generally can the profit such as coating butter especially in construction
Synovia, it is easier to the phenomenon that having skidded makes to prevent that the anti-theft function for unloading anti-theft bolt is poor or it is antitheft not serve,
To keep anti-theft function unreliable, or even cause serious property loss；On the other hand, existing to prevent unloading anti-theft bolt in its spiral shell
The threaded portion of bolt is arranged insertion groove, and roller is inserted into antitheft to prevent from dismantling in insertion groove, when installation, passes through nuts and bolt
Threaded portion cooperates to be fixed with this, once occur intermediate fixed object thickness it is larger when, nut screws in screw thread
Part is few, causes nut that can shelter from insertion groove, influences roller and be normally inserted into insertion groove, it has not been convenient to installation personnel installation
It is anti-to unload anti-theft bolt；For existing roller since bonding strength is not high, the performance of Anti-dismantling is not high, is easily drawn out and damages, from
And security performance is not strong.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of easy for installation, anti-theft functions
Knurling roler bolt-type anti-disassembling anti-theft bolt highly reliable and that installation bonding strength is high.
The technical solution of the utility model is achieved in that a kind of knurling roler bolt-type anti-disassembling anti-theft bolt, special
Sign is: including bolt body and roller, the bolt body includes that sequentially connected bolt head, the first shank of bolt and surface are set
It is equipped with the second shank of bolt of threaded portion, the threaded portion of second shank of bolt is milled with one for roller insertion along central axes
Cross section is in the open slot of V-shape, is provided with the insertion hole that cross section is square on the bolt head, insertion hole vertically according to
It is secondary to connect through bolt head and the first shank of bolt and with open slot, it is provided on the wall that inserts in the hole along central axes direction several
It is equally spaced from each other from spaced hemispherical protuberances, be provided with the equally distributed annular knurl line to assume diamond in shape on the roller side wall
Trace, roller one end insertion, which is set to, to be inserted in the hole and extends in open slot.
By using above-mentioned technical proposal, during installation, nut screw in the second bolt column on threaded portion in, roller from
The insertion hole being arranged on bolt head is inserted into open slot, is stopped with this to nut, is avoided since nut blocks
Firmly one end of the second bolt column and cause roller can not normal mounting into open slot, cause anti-to unload anti-theft bolt and cannot normally make
With the phenomenon that occur, the equally distributed annular knurl line trace to assume diamond in shape is provided on the side wall of roller, for what is increased with nut
The degree of roughness of contact surface, to improve friction factor, insert in the hole on wall along central axes direction be provided with it is several each other etc.
The hemispherical protuberances of distance interval setting, match under effect with the annular knurl line trace being arranged on roller side wall, avoid roller easy
It is destroyed pull-out, to improve the security intensity of knurling roler bolt-type anti-disassembling anti-theft bolt, is set in the open slot of V-shape
After setting for guaranteeing that columned roller is inserted into open slot, roller is squeezed by nut, to generate a rotation
Power reduce the amount of rotation and under the effect of the two sides opposing sidewalls of V-shape opening slot, increase and anti-unload anti-theft bolt
Anti-dismantling performance, the utility model provide a kind of rolling easy for installation, anti-theft function is highly reliable and installation bonding strength is high
Flower roller bolt-type anti-disassembling anti-theft bolt.
The utility model is further arranged to: several equally spaced from each other sow discord axially is provided with along roller on the roller side wall
Every the annular projection for cooperating hemispherical protuberances to connect and fix of setting.
It is preferred that are as follows: the first shank of bolt cross sectional radius is greater than the second shank of bolt cross sectional radius.
By using above-mentioned technical proposal, after roller is inserted into insertion hole, set on wall along central axes direction inserting in the hole
It is equipped with several equally spaced from each other from spaced hemispherical protuberances, is axially provided on roller side wall along roller several equally spaced from each other
It mutually connects and fixes, increases under both hemispherical protuberances and annular projection mutual cooperation effect from spaced annular projection
Interconnection intensity between roller and bolt body, avoids after roller is installed, and wants to extract roller out anti-to destroy
The Anti-dismantling for unloading anti-theft bolt increases the anti-safety for unloading anti-theft bolt；First shank of bolt cross sectional radius is greater than second
Shank of bolt cross sectional radius due to being provided with insertion hole on bolt head, and is inserted into hole and connect with open slot, it is naked to avoid roller
Exposing outside causes roller to be easily destroyed and pull out.
The utility model is further arranged to: being provided on the opposite side wall in two sides along central axes direction on the open slot
It is several equally spaced from each other from spaced crescent shape protrusion.
It is preferred that are as follows: the thickness of the crescent shape protrusion is gradually reduced from one end far from the first shank of bolt toward the other end.
It is preferred that are as follows: the roller length is 90 the percent of bolt body length.
By using above-mentioned technical proposal, after roller enters in open slot, the hemispherical protuberances and rolling of roller surface
Under crescent shape protrusion mutual cooperation effect on the decorative pattern trace side wall opposite with two sides on open slot are arranged in, roller is improved
Bonding strength is installed in grafting, and the thickness of crescent shape protrusion is gradually reduced from one end far from the first shank of bolt toward the other end, should
Setting facilitates roller one direction insertion setting from bolt head for cooperating, and the roller after insertion cannot be by unilaterally from bolt head
On insertion hole at extract, for improve it is anti-unload the Anti-dismantling performance of anti-theft bolt and facilitate the function of installation, roller length is
90 the percent of bolt body length not only can guarantee roller and the sufficient mating reaction of nut, but also will not lead because roller is too long
Cause detachability that can be affected.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is specific embodiment of the present invention present invention looks up structural representation.
Fig. 2 is specific embodiment of the present invention schematic view of the front view.
Fig. 3 is roller structure schematic diagram in specific embodiment of the present invention.
Fig. 4 is specific embodiment of the present invention overlooking structure diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As Figure 1-Figure 4, the utility model discloses a kind of knurling roler bolt-type anti-disassembling anti-theft bolts, practical at this
In novel specific embodiment, including bolt body 1 and roller 2, the bolt body 1 include sequentially connected bolt head 3, first
Shank of bolt 4 and surface are provided with the second shank of bolt 6 of threaded portion 5, and the threaded portion 5 of second shank of bolt 6 is along central axes
It is milled with the open slot 7 that a cross section for the insertion of roller 2 is in V-shape, is provided with what cross section was square on the bolt head 3
It is inserted into hole 8, the insertion hole 8 vertically sequentially passes through bolt head 3 and the first shank of bolt 4 and connect with open slot 7, the insertion hole
Be provided on 8 inner walls along central axes direction it is several equally spaced from each other from spaced hemispherical protuberances 9, on 2 side wall of roller
It is provided with the equally distributed annular knurl line trace 10 to assume diamond in shape, 2 one end of roller insertion is set in insertion hole 8 and extends to out
In mouth slot 7.
By using above-mentioned technical proposal, during installation, nut is screwed in the threaded portion 5 on the second bolt column 6, roller
2 be inserted into open slot 7 from the insertion hole 8 being arranged on bolt head 3, is stopped with this to nut, is avoided due to spiral shell
Mother shelter from one end of the second bolt column 6 and cause roller 2 can not normal mounting into open slot 7, cause anti-to unload anti-theft bolt
The phenomenon that being unable to normal use appearance is provided with the equally distributed annular knurl line trace 10 to assume diamond in shape on the side wall of roller 2, is used for
Increase the degree of roughness with the contact surface of nut, to improve friction factor, is arranged on insertion 8 inner wall of hole along central axes direction
Have several equally spaced from each other from spaced hemispherical protuberances 9, matches with the annular knurl line trace 10 being arranged on 2 side wall of roller and cooperate
Under, roller 2 is avoided easily to be destroyed pull-out, is in V to improve the security intensity of knurling roler bolt-type anti-disassembling anti-theft bolt
The setting of the open slot 7 of font is for squeezing roller 2 by nut after guaranteeing that columned roller 2 is inserted into open slot 7
Pressure, so that the power of a rotation is generated, and under the effect of the two sides opposing sidewalls of V-shape opening slot 7, reduce the amount of rotation,
Increase the anti-Anti-dismantling performance for unloading anti-theft bolt, the utility model provide it is a kind of it is easy for installation, anti-theft function is highly reliable
And the high knurling roler bolt-type anti-disassembling anti-theft bolt of bonding strength is installed.
In the utility model specific embodiment, on 2 side wall of roller along roller 2 it is axial be provided with it is several equally spaced from each other
From the spaced annular projection 11 for cooperating hemispherical protuberances 9 to connect and fix.
In the utility model specific embodiment, it is transversal that 4 cross sectional radius of the first shank of bolt is greater than the second shank of bolt 6
Radius surface.
By using above-mentioned technical proposal, after roller 2 is inserted into insertion hole 8, along central axes direction on insertion 8 inner wall of hole
Be provided with it is several equally spaced from each other from spaced hemispherical protuberances 9, on 2 side wall of roller along roller 2 it is axial be provided with it is several that
This annular projection 11 being equidistantly spaced mutually blocks under the mutual cooperation effect of both hemispherical protuberances 9 and annular projection 11
Fixation is connect, the interconnection intensity between roller 2 and bolt body 1 is increased, avoids wanting to extract out after roller 2 is installed
Roller 2 increases the anti-safety for unloading anti-theft bolt to destroy the anti-Anti-dismantling for unloading anti-theft bolt；First shank of bolt 4 is horizontal
Section radius is greater than 6 cross sectional radius of the second shank of bolt, due to being provided with insertion hole 8 on bolt head 3, and is inserted into hole 8 and opens
Mouthful slot 7 connects, and avoids that roller 2 is exposed to cause roller 2 to be easily destroyed and pull out outside.
In the utility model specific embodiment, set on the opposite side wall in two sides along central axes direction on the open slot 7
It is equipped with several equally spaced from each other from spaced crescent shape protrusion 12.
In the utility model specific embodiment, the thickness of the crescent shape protrusion 12 is by one far from the first shank of bolt 4
It holds toward the other end and is gradually reduced.
In the utility model specific embodiment, 2 length of roller is 90 the percent of 1 length of bolt body.
By using above-mentioned technical proposal, after roller 2 enters in open slot 7, the hemispherical protuberances 9 on 2 surface of roller
With annular knurl line trace 10 under the raised 12 mutual cooperations effect of the crescent shape being arranged on the side wall that two sides are opposite on open slot 7, mention
Bonding strength is installed in the grafting of high roller 2, and the thickness of crescent shape protrusion 12 is from one end far from the first shank of bolt 4 toward another
End is gradually reduced, which facilitates roller 2 from one direction insertion setting on bolt head 3 for cooperating, and the roller 2 after insertion cannot
It is unilaterally extracted from the insertion hole 8 on bolt head 3, for improving the anti-Anti-dismantling performance for unloading anti-theft bolt and facilitating installation
Function, 2 length of roller is 90 the percent of 1 length of bolt body, both can guarantee roller 2 and nut adequately matches cooperation
With, and will not cause detachability that can be affected because roller 2 is too long.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of knurling roler bolt-type anti-disassembling anti-theft bolt, it is characterised in that: including bolt body and roller, the bolt master
Body includes the second shank of bolt that sequentially connected bolt head, the first shank of bolt and surface are provided with threaded portion, second spiral shell
The threaded portion of tightening latch is milled with the open slot that a cross section for roller insertion is in V-shape along central axes, on the bolt head
It is provided with the insertion hole that cross section is square, insertion hole vertically sequentially passes through bolt head and the first shank of bolt and and open slot
It connects, is provided on the wall that inserts in the hole along central axes direction several equally spaced from each other from spaced hemispherical protuberances, institute
It states and is provided with the equally distributed annular knurl line trace to assume diamond in shape on roller side wall, roller one end insertion, which is set to, to insert in the hole simultaneously
It extends in open slot.
2. a kind of knurling roler bolt-type anti-disassembling anti-theft bolt according to claim 1, it is characterised in that: the roller side
It is axially provided on wall along roller several equally spaced from each other from the spaced ring-type for cooperating hemispherical protuberances to connect and fix
Protrusion.
3. a kind of knurling roler bolt-type anti-disassembling anti-theft bolt according to claim 2, it is characterised in that: first spiral shell
Tightening latch cross sectional radius is greater than the second shank of bolt cross sectional radius.
4. a kind of knurling roler bolt-type anti-disassembling anti-theft bolt according to claim 3, it is characterised in that: the open slot
It is provided on the opposite side wall in upper two sides along central axes direction several equally spaced from each other from spaced crescent shape protrusion.
5. a kind of knurling roler bolt-type anti-disassembling anti-theft bolt according to claim 4, it is characterised in that: the crescent shape
The thickness of protrusion is gradually reduced from one end far from the first shank of bolt toward the other end.
6. according to claim 1 to knurling roler bolt-type anti-disassembling anti-theft bolt described in any one of 5, it is characterised in that:
The roller length is 90 the percent of bolt body length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820787999.2U CN208203767U (en) | 2018-05-24 | 2018-05-24 | A kind of knurling roler bolt-type anti-disassembling anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820787999.2U CN208203767U (en) | 2018-05-24 | 2018-05-24 | A kind of knurling roler bolt-type anti-disassembling anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203767U true CN208203767U (en) | 2018-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820787999.2U Active CN208203767U (en) | 2018-05-24 | 2018-05-24 | A kind of knurling roler bolt-type anti-disassembling anti-theft bolt |
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| Country | Link |
|---|---|
| CN (1) | CN208203767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247895A (en) * | 2020-11-06 | 2021-01-22 | 福建省大立通用机电制造有限公司 | Special tamper-proof structure |
-
2018
- 2018-05-24 CN CN201820787999.2U patent/CN208203767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247895A (en) * | 2020-11-06 | 2021-01-22 | 福建省大立通用机电制造有限公司 | Special tamper-proof structure |
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